The charity, which provides psychological support to children with brain tumours and their families, is hosting the event at the July Course and is being supported by Newmarket Jockey Club.
In addition to the races, there will also be a charity auction, gourmet lunch and afternoon tea.
Tables are available with sponsorship packages starting at £1500 for a table of 10. There are several hospitality packages to choose from, as well as additional sponsorship opportunities.
For more information or to book a table, please contact Jess Wilde, Corporate and Community Fundraiser, by emailing jess@tomstrust.org.uk or call 07307 417528